_.setWith(object, path, value, [customizer])

_.mapKeys(object, [iteratee=_.identity])

_.defaultTo(value, defaultValue)

_.prototype.chain()

_.set(object, path, value)

_.sortedIndexOf(array, value)

_.toUpper([string=''])

_.differenceWith(array, [values], [comparator])

_.truncate([string=''], [options={}])

_.invert(object) source